There is no video on the council website, but the PCN is pants so it hardly matters, draft reps:
Dear London Borough of Lambeth,
The 14 and 28 days payment periods stated on the PCN are both wrong, in light of that the PCN is invalid and it must be cancelled.
Yours faithfully,
Send them via the council website and keep a screenshot of the confirmation screen. The council will reject this but victory is all but assured on appeal to the tribunal.